Hyundai Sonata Hybrid brake failure problems

Filed Feb 12, 2026 · Airbags, Brakes · MD · crash · 3 injuries

We pulled up at Hillgreen circle Cockysville MD To drop my boyfriend off at his apartment. I went to pull in the parking spot.I went to put the car into park and it had no brakes. I was slamming them and pumping them. It excellerated and took off. Jumped the curb,went down the hill and into the apartment building. A red light had came on the dash, right before it took off. Seemed like it was changing to gas or the electric mode,or the other way around. The airbag on the passenger side came out deflated,and filled with smoke going into the car. He was the belted front passenger and his elbow went in to the front window. You can tell by looking at it,the hole and spidered around it. He broke his right elbow. It is available anytime at the moment. It's at Hyundaii in Glen burnie. I need to get it to state farms lot,to get the Kelly blue book value. We look forward to hearing from you

Filed Sep 12, 2025 · Brakes · MD

Vehicle: 2017 Hyundai Sonata Hybrid – 131,700 miles – Maryland registered While driving, my vehicle displayed the warning “Check Hybrid System. Turn off engine.” The dealer diagnosed a failure of the Hydraulic Control Assembly (ABS/Brake Control Unit). This is a safety-critical braking system. The vehicle is unsafe to drive until repaired. Hyundai previously issued recalls for this same component on earlier Sonata Hybrid models (2011–2015), due to risk of brake failure and fire. My 2017 vehicle is experiencing the exact same failure, yet is not currently included in the recall. This defect should be investigated as it compromises safe braking performance and puts drivers and passengers at risk. I am requesting that the federal safety agency review this issue and consider expanding Hyundai’s recall coverage to include later model years like mine.

Filed May 1, 2024 · Brakes · 172,453 miles · OR

The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification of the federal safety agency Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while attempting to start the vehicle the brake pedal went to the floorboard. The contact replaced the brake pads; however, the failure persisted. The dealer was made aware of the failure and confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 172,453. Parts distribution disconnect.

Filed Nov 27, 2023 · Transmission · 74,680 miles · GA

The contact owns a 2015 Hyundai Sonata Hybrid. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated. The contact stated that while depressing the brake pedal, the brake pedal went to the floorboard. The contact stated that the warning light to turn off the vehicle was illuminated. The contact turned the vehicle off and the vehicle failed to restart. The vehicle was towed to the dealer; however, the dealer refused to service the vehicle. The vehicle was then towed to the residence. The vehicle was towed to another Hyundai dealer where the vehicle was diagnosed with a failed transmission and battery. The contact was informed that the transmission and battery needed to be replaced. The vehicle was repaired. The contact stated while driving away from the dealer, she heard an unusual knocking sound coming from the engine compartment. The vehicle was taken back to the dealer. The service technician accompanied the contact for a test drive and confirmed the knocking coming from the engine compartment. The contact was informed that the new transmission that was installed was defective, and the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 74,680.

Filed Oct 23, 2023 · Electrical, Engine · FL

HEV WARNING TURN OFF ENGINE CAR STARTED SHAKING while driving on the interstate gas pedal went to the floor car started making a loud noise from the engine I put car in park and it would not move for 45 minutes at a stop sign

Filed Nov 6, 2018 · Brakes, Electrical · 90,132 miles · CA

Was backing out of the driveway and the check brake warning started going off. The brake pedal went to the floor. The whole system of the car shut down. My hydraulic unit failed and they will not cover it under warranty. Thank god I wasn't driving when this happened.

Filed Sep 25, 2018 · Brakes, Steering · 49,900 miles · FL

On 05/10/2018, I noticed severe vibration and clunking in steering wheel. Brought vehicle to hyundai dealer and they replaced the flexible coupling in the steering column due to wear. On 08/08/2018, I brought the vehicle to the hyundai dealer for routine service and asked them to check the brakes as I experienced an intermittent loud squeaking from the brake pedal. They were unable to diagnose the problem. On 09/25/2018, I attempted to start the vehicle from a stationary position and when I depressed the brake, the pedal went all the way to the floor and a warning came on the dash advising me that the brakes had failed and I needed to stop immediately. I shut the vehicle off and then attempted to restart. Upon restart the warning condition did not reoccur. Vehicle towed to hyundai dealer for diagnosis. I was advised that the issue seems to have corrected itself and the brake system simply needed to be recalibrated.

Filed Sep 4, 2018 · Brakes · 34,000 miles · CA

Ii own a 2016 hyundai sonata hybrid with 34,000 miles. I have had no problems with the car until the incident that occurred on aug 5, 2018 while driving on three lane highway 99 north of modesto. At about 70mph the dashboard lite up with brake system warnings. At the same time, the engine shut down. I struggled in traffic to move to the side of the road and got to the apron and found I had no brakes but managed to stop. I turned the ignition off and visually inspected the car, especially the brakes. Seeing nothing, after a few minutes, turned it back on. The engine started but the warning lights remained on. I had brakes and slowly drove to an off ramp to get help. After getting off the highway, I stopped and again turned the ignition off. When I turned it back on, all systems were good. I drove over 100 miles home without problems. I immediately took the car to my dealer, alexander hyundai, oxnard ca. After 2 days, they found no faults but in consultation with hyundai support, decided the problem was with the hydraulic braking system and performed the hyundai recommended service. I have serious concerns about the safety of the car based on the service performed. I was not using the brakes at the time of the shutdown and wouldn't expect it to fix itself. I would not expect the problem described to cause an engine shutdown creating a serious safety hazard. I received no assurances that it would not occur again. There should be a limited number of faults that create an immediate shutdown and the fault described should be not be one of them. The dealership claims they have done everything they can and did what hyundai technical support recommended. They provided no evidence their service revealed anything wrong with the brake system. Since they have done what the hyundai corporation prescribed, they feel no liability or concern for my safety.

Filed Feb 8, 2018 · Brakes, Transmission · 73,000 miles · CA · crash · 1 injury

Tl* the contact owns a 2013 hyundai sonata hybrid. While driving 10 MPH, the brake pedal was depressed and traveled to the floorboard. The contact attempted to stop the vehicle by shifting the gear shifter into reverse, but it failed to shift from drive. All the warning indicators illuminated. As a result, the vehicle collided with a street sign. The contact sustained back injuries that did not require medical attention. A police report was filed. The vehicle was towed to the contacts home. The dealer (keyes mission hills hyundai, 10240 sepulveda blvd, mission hills, mission hill, ca 91345, (818) 221-4000) was contacted and informed the contact to have the vehicle towed to an auto body repair shop. The manufacturer was made aware of the failure and informed the contact to take the vehicle to a dealer for determination of the brake failure. The contact stated that the vehicle was towed back to the dealer, but a failure could not be determined. The vehicle was not repaired. The approximate failure mileage was 73,000. *tt

Filed Apr 23, 2017 · Electrical · 50,500 miles · CA

I was driving on the highway when suddenly the check charging light system warning came on, all 3 lights for oil, battery, and engine came on at the same time! The car stalled was not possible to stear and brakes didn't work... I had to coast luckily I was only in second to right line and easily got to emergency lane!! This happened on 101 in california during a busy time!!!